Spool or reel.



PATENTED SEPT. 1'7, 1907.

Willa awn UNITED, STATES PATENT OFFICE.

FRANK B. LA MAY, OF ROCHESTER, NEW YORK, KSSIGNOR TO THE KEE MANUFACTUR-7 ING COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

SPOOL OR REEL.

No. 866,039l

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed October 29,1906- fBerial No- 341.007.

To all whom it may concern:

Be it known that I, FRANK B. LA MAY, of Rochester, in the county ofMonroe and State of New York, have invented certain new and usefulImprovements in Spools or Reels; and I do hereby declare the followingto be a full, clear, and exact description of the same, reference beinghad to the accompanying drawings,

forming a part of the specification, and to the referonce-numeralsmarked thereon.

My present invention relates to spools or reels and particularly to thattype designed for winding tape or ribbon such as the spools used withthe inking devices of typewriting machines to feed the inking ribbonsback and forth between the types and platen, and it has for its objectto provide a cheap and serviceable article of this description havingmeans for attaching the end of the ribbon or other material thereto andholding it securely against the drum during the winding operation, nomatter in which direction this takes place.

A further object of my invention is-to so arrange said attaching meansas not to interfere with the regularity of the convolutions of theribbon whereby the capacity of the spool would be reduced.

To these and other endsthe invention consists in certain improvementsand combinations of parts, all as will be hereinafter morefullyexplained, the novel features being pointed out in the claims atthe end of the specification.

In the drawings: Figure 1 is an end view of a spool constructed inaccordance with my invention. Fig. 2 is a top plan view thereof. Fig. 3is a transverse central section on the line 3-3 of Fig. 2 showing aribbon with its end attached. Fig. 4 is a longitudinal central sec- 7tion on the line 44 of Fig. 1. Fig. 5 i1lustrates the blank from whichthe drum is formed.

Similar reference numerals in the several figures indicate similarparts.

In the sale of such articles as typewriter ribbons which are preferablyfurnished wound upon a reel ready to be inserted in the machine forwhich they are adapted, and which are discarded together with the reelwhen they have served their period of usefulness, a reel is demanded ofa construction so light and simple as to be cheaply manufactured yetcapable of holding the end of the ribbon securelythereon so that it willnot become detached when unwound and the direction of the feed reversedto wind back thereon from the other reel. To such uses spools embodyingmy improvements are particularly suitable, and referring now to thedrawings, 1 indicates preferably circular sheet metal end flangesprovided with radial perforations 2 as desired to reduce the weightthereof and between which extends the winding drum 3. The'latter istubular in form, being con-.

veniently rolled from sheet material and has its ends supported withingrooves or depressions formed by annular concentric ribs 4 ofcorresponding diameter stamped in the inner faces of the flanges. Atubular bearing member or pin 5 for the reception of a spindle passescentrally of the spool within the drum, the ends of which are upset orotherwise secured against the outer faces of the flanges holding thedrum firmly in place and maintaining the rigidity of the spool as aWhole. I i

The ends of the sheet forming the drum (illustrated in Fig, 4) are notbrought together but to within a short distance of each other, forming aslot or opening paraleasily admit the end of the ribbon the spool isdesigned to carry. One of said ends thus opposed, is provided with atooth or spur 7 as an extension thereof, which is formed to inclinedownwardly within the drum, and thence upwardly so that its pointprojectswithin an aperture 8 arranged in the other a short distance fromthe edge of the slot. The winding surface thus produced is, with theexception of the slot, smooth, even and perfectly cylindrical.

To attach the ribbon (indicated in Fig. 3 by the numeral. 9), a fiatmetal strip or such other suitable threading device as will serve tothrust the end thereof within the slot 6, is used, the spur 7 beingdepressed thereby until the threader is withdrawn, when it will rise andimpale the ribbon, the point of the spur being then within the aperture8 which substantially locks the ribbon against disengagement. The strainexerted upon the latter tends only to strengthen the connection aswhenwound in the direction in which the spur extends, the ribbon bindsupon the blind edge of the slot while in the opposite direction it isdrawn more firmly against the spur., It is preferable to construct thedrum of a reasonably elastic material to give the proper degree ofresiliency to the spur thereon.

I claim as my invention:

1. In a spool or reel, the combination with the sheet metal end flangeshaving grooves stamped in their inner faces forming projecting ribs ontheir outer faces, of a tubular winding drum extending between said endflanges and having its ends supported in the grooves therein and a rigidconnection between the flanges.

metal end flanges having grooves stamped in their inner faces formingprojecting ribs on their outer faces, and having apertures arrangedcentrally thereof, of a tubular winding drum extending between said endflanges and having its ends supported in the grooves and a connectingmeans extending through the apertures in the end flanges and rigidlysecured therein.

2. In a spool or reel, the combination with the sheetv lel with the axisthereof, and of a ,width sufficient to I 3. In a spool or reel, thecombination with the sheet metal end flanges having grooves stamped intheir inner faces forming projecting ribs on their outer faces andhaving apertures arranged centrally thereof, of a tubular winding drumextending between said end flanges and having its ends supported in thegrooves and a bearing member comprising a tubular pin extending throughthe apertures in the end flanges and rigidly secured therein.

4. In a spool 01' reel, the combination with the end 10 flanges and adrum secured between them having a slot or opening therein and providedwith an aperture adjacent said opening, of :1 resilient ribbon impalingspur on the drum projecting through the opening and within the interiorof the drum and having its point turned upwardly to cofiperute with theaperture.

FRANK B. LA MAY.

Witnesses RUSSELL B. GRXFFITH, CLARENCE A. BATEMAN.

